You can vary the amount of water, but that will effect how strong your water glows. More water will dilute the glow, and less water may make it shine more intensely.

The gloves will protect your hands from getting stained with ink. Not all highlighters work. Even if you test them under a blacklight and the ink appears to glow when you write, they may not work once diluted in the water. Your best bet is to use a standard yellow highlighter.

Use gloved hands to twist and squeeze ink out of the tube when you are finished. When the ink tube is whitish, it means most or all of the ink is now in the water.

If you are using the glaze on frosting, it is important the frosting is cold and firm to the touch. The glaze can soften or make the frosting watery if it is not hard. [1] X Research source

Whisk the powder for about one minute, or until thoroughly combined with the boiling water.

For extra glow-power, you could incorporate tonic water into your baked goods recipe. Try stirring five tablespoons into your frosting before using it on your cake or cupcakes. [4] X Research source

You can use an ice bath to hasten the process, just make sure you don’t cool the mixture so much that it begins to set.

Try not to drip any of the glaze on the cake or pastry part of your baked goods, focusing only on the icing. Allow any excess glaze to drip off.

Six coats of glaze should give you total coverage (no missed spots) and be enough to get the desired glowing effect. Once all six coats have been applied, place your baked goods in the refrigerator for about 15 minutes so the glaze can set.

Your frosting may have the slight taste of lime or tonic. Add a little flavoring to the frosting, like vanilla or almond, to cover the flavor if desired.

The bag will keep the powder contained so you don’t lose any. Be aware that the pounding may cause tiny tears in the bag.

Use extreme caution when using a blacklight around water. Keep the light a safe distance from the water so there is no possibility that it might fall in.

Glow-in-the-dark paints will glow without the presence of a blacklight–they can be charged by exposure to regular light. The fluorescent paints will only respond to the UV rays from a blacklight. Look for paints that are designed for kids and are 100% non-toxic.

Using hot water will dilute the paint faster, so you will see faster results.

Have fun painting with these colors, mixing water to create new shades, or doing other crafts.